Optical fiber type rapid measuring system for eyeball axial multiparameter

A measurement system and multi-parameter technology, which is applied in the fields of eye testing equipment, medical science, gonioscopy, etc., can solve problems such as divergence of returning light, and achieve the effect of reducing installation accuracy, precise positioning accuracy, and simple installation process
CN110169752AActive Publication Date: 2019-08-27CHANGCHUN UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHANGCHUN UNIV OF SCI & TECH
Publication Date
2019-08-27

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Abstract

The invention relates to an optical fiber type rapid measuring system for eyeball axial multiparameter, and belongs to the technical field of measurement applying optical instruments to ophthalmology.The system is composed of a set of low coherent systems integrated on a triaxial mobile platform, a set of high coherent systems and an eyeball aligning system; two sets of optical fiber interferencesystems are constructed to realize measuring requirements; the high coherent systems are a Mach Zehnder interferometer; low coherent signals are used to perform accurate positioning on different tissue interfaces of eyeball axial direction; the high coherent systems are a Michelson interferometer; uniform high coherent signals are used as metering scales for performing distance measurement on thelow coherent signals. The system has the advantages of non-contact measurement, rapid measuring speed, high accuracy, high signal-to-noise ratio, high eyeball alignment accuracy and the like.
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Description

technical field

[0001] The invention belongs to the technical field of measurement of optical instruments applied in ophthalmology, and in particular relates to an optical fiber type eyeball axial multi-parameter rapid measurement system. Background technique

[0002] The biological measurement of the axial length of the eyeball is to measure the axial structural parameters of the eyeball by various related inspection methods. Including the measurement of corneal thickness, anterior depth, lens thickness, vitreous cavity length and axial length. Many ophthalmic diseases are related to ocular axial biometric parameters. Such as glaucoma, myopia, hyperopia, cataract, etc., whose clinical manifestations are changes in the axial length of the eye or other biometric parameters. Accurately obtaining axial parameters of the eyeball is of great help to the diagnosis of ophthalmic diseases.

[0003] With the development of new diagnosis and treatment technologies in ophthalmology, ...

Claims

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